3428399 has 4 divisors (see below), whose sum is σ = 3692136. Its totient is φ = 3164664.

The previous prime is 3428389. The next prime is 3428413. The reversal of 3428399 is 9938243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9938243 = 7 ⋅1419749.

It is a cyclic number.

It is not a de Polignac number, because 3428399 - 2⁸ = 3428143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131849 + ... + 131874.

It is an arithmetic number, because the mean of its divisors is an integer number (923034).

Almost surely, 2^3428399 is an apocalyptic number.

3428399 is a deficient number, since it is larger than the sum of its proper divisors (263737).

3428399 is a wasteful number, since it uses less digits than its factorization.

3428399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263736.

The product of its digits is 46656, while the sum is 38.

The square root of 3428399 is about 1851.5936379238. The cubic root of 3428399 is about 150.7869603652.

The spelling of 3428399 in words is "three million, four hundred twenty-eight thousand, three hundred ninety-nine".